在Gorilla mux处理后运行中间件
我试图在处理Gorilla Mux路由后使用Golang中间件运行,以便更改每个请求的响应 代码示例见下文。目前,它返回“run before,run test”,目标是使用runsafter中间件返回“run before,run test,run after” 大猩猩Mux有可能做到这一点吗在Gorilla mux处理后运行中间件,go,gorilla,mux,Go,Gorilla,Mux,我试图在处理Gorilla Mux路由后使用Golang中间件运行,以便更改每个请求的响应 代码示例见下文。目前,它返回“run before,run test”,目标是使用runsafter中间件返回“run before,run test,run after” 大猩猩Mux有可能做到这一点吗 package main import ( "fmt" "github.com/gorilla/mux" "net/http" ) func runsbefore(h htt
package main
import (
"fmt"
"github.com/gorilla/mux"
"net/http"
)
func runsbefore(h http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("run before, "))
h.ServeHTTP(w, r)
}
return http.HandlerFunc(fn)
}
func runsafter(h http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("run after, "))
h.ServeHTTP(w, r)
}
return http.HandlerFunc(fn)
}
func runtest(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("run test, "))
}
func main() {
fmt.Println("Server starting on port 8000")
r := mux.NewRouter()
r.HandleFunc("/", runtest).Methods("GET")
http.ListenAndServe(":8000", runsbefore(r))
// something like: http.ListenAndServe(":8000", runsbefore(r(runsafter)))
}
使用
http.ListenAndServe(":8000", runsAfter(runsbefore(r)))
并修复runsAfter
中的错误:
func runsafter(h http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
h.ServeHTTP(w, r)
w.Write([]byte("run after, "))
}
return http.HandlerFunc(fn)
}